Assigxoe of



(Model.) 2 Sheets-Sheet 1.

. S. M. MICHELSON.

TRUNK AND FURNITURE GASTER. No. 849,948. Patented sept. 28, 1888.

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2 Sheets-Sheet 2.

(Model.)

S. M. MICHELSON.

TRUNK AND FURNITURE GASTER.

I UNITED STATES PATENT OFFICE.

SIGISMUND M. MICHELSON, OF MILVAUKEE, VISOONSIN, ASSIGOR OF ONE-HALF TOGEORGE SYLVESTER, OF SAME PLAGE.

TRUNK OR FURNITURE CASTER.

SPECIFICATION forming part of Letters Patent No. 349,948, datedSeptember 28, 1886.

Application filed July Q0, 1885.

To @ZZ whom, it may concern:

Be it known that I, SrGIsnUND M. MICH- ELsoN, of Milwaukee, in thecounty of Milwaukee, and in the State ot Visconsiu, have inventedcertain new and useful Improvements in Trunk orFurnitu re Casters; and Ido hereby declare that the following is a l'ull, clear, and exactdescription thereof.

My invention relates to trunk-easters, and will be l'ully describedhereinafter.

In the drawings, Figurel is a section of my improved caster. Figs. 2, 5,(i, and 7 are like sections of modifications of the same. Fig. 3 is arear edge view ol.' the caster shown in Fig. 1. Fig. 4 is a front edgeview ot' the same caster, the housing being omitted in Figs. 3 and 4,toclearly show the construction and arrangement of the parts which wouldotherwise be concealed thereby. Fig. 8 is aplan viewof the base-plateremoved from the rest of the easter. Fig. 9 is a plan view of thebase-plate in position on the caster. Figs. 10 and 11 are respectivelyperspective and plan views oi' a locking-lug for securing the base-plateand caster together'. Figs. 12 te 17 are details of parts hereinafterreferred to.

A is the base-plate, which, as shown in Figs. 8 and 9, is formed with aseries ofkey-hole slots, a, nea-r its outer edge, and a preferablylarger keyhole slot, a, near its center.

B is a wheel-frame, which is shown in plan in Fig. 12, and which isprovided with a key hole slot, 1, intermediate between the bearings forthe large wheel b and those i'or the smaller wheel, b.

b are grooved wheels, which are let into the upper portion of thewheel-frame, as shown in Fig. 1, and these work up against an annularrib, c.

The bottom piece, D, ofthe caster is slotted, as at d, and has cast withit hangers D', to receive the axle of the large wheel b, and the axle isheld in 'place in the hangers by projections B,that extend down vfromthe casting B, whichlatter forms the wheel-frame, an opening, B2, beingleft in the wheel-frame between the projections B', i'o receive theupper portions of the wheel.

F is a center-pin, which holds the bottom securing the center-pin inplace.

Serial No. 172,062. (Model.)

Vhen my device is to be pnt together, lthe wheel-frame is placed uponthe bottom plate, D, after the bolt F has been placed in the slot d insaid bottom plate, and the axle of wheel b has been placed in itsbearings in suchbottom plate, the base-plate is placed upon the wheelframe, with the head ot' bolt F projecting through the larger portion ofthe vkey-slot a', formed therein. Said base-plate is then moved to oneside until it coincides with the bottom plate and the bolt is caught bythe narrow portion of the slot a. The lng F is then inserted in slota,to lock the bolt in. The caster thus put together is then slipped intothe housing G, the heads of the rivets f/ passing through the largerportions of the key-openings a, the base-plate is turned into theposition shown in Fig. 9, andthe parts thus securely locked together'.Thelockinglug F', (shown in detail in Figs. l0 and 11) consists of around depending hub adapted to t just within thelargest or circular partof the key-hole slot a in the plate A, while the lug is prevented fromdropping through said slot by means of two little wings or flanges, oneon each side of the upper part of said hub, and from the latter partthere extends a projection just the width of the long narrow part of thesaid key-hole slot u, but of less length, and beveled on top toward itsend, so that when the bolt F is in place, as just described, the beveledend ofthe said projection will tit under the upper head of said bolt F,and thus the key-hole slot a will be completely closed up, and the boltFprevented from moving out of place.

In the inodiiication shown in Fig. 5 the bottom piece, D, has hangerssimilar to those in Fig. 1, and wheel-frame B is similar in constructionto that shown in Fig. 1, except that instead of using the loose pin F, Iform the bottom piece with a pin which is somewhat pointed on top, and acap, l1., is placed upon it, so that when the plate A is placed upon theaunulus or housing G the apex of the cap will extend up through acentral opening or into an indentation in the base-plate, whichlatter issecured upon the housing, as in Fig. 1. In the modification shown inFig. 6 the wheel-frame is similar to that shown in Fig. 1, and the pin Fis locked in a base-plate by a ICO Y fers only slightly from that inFig. l, and the head of the bolt is covered by a cap, j'. In these lasttwo modifications lateral displacement of the wheel-frame is preventedby the annular ribs c', acting on the flanges of wheels b.

In the modification shown in Fig. 2 the bottom plate, D, is made in onepiece with the housing G, and while the base-plate is secured to thetrunk or furniture-leg by any suitable means the parts are lockedtogether by pin F, as in Fig. 1.

In Figs. 14 and 16 I dispense with small Wheels entirely, and simply usea frame, B, for centering the bottom plate, this frame having dependinglugs B', for holding-the axle' of the large Wheel in place.

In Fig. 17 I show a frame similar to that in Fig. 1G, with notches h onits sides, and this Iplace in a cup, D G, the annulus G of which isnotched, as at h2, to receive one end of an axle that is supported atits other end in a similar notch in the frame. These Wheels Zr',

Fig. 17, maybe either fianged or grooved, as in Figs. 5 and 6.

Having thus described my invention,I what I claim as new, and rdesire tosecure vby Letters Patent, is-

1. In a trunk or furniture caster, the combination, with a housing,of awheel-frame, slotted bottom and base plates, and alockingpin andlocking-lug adapted to fit Within the central slot in the base-plate, asset forth.

2. The base-plate have key-hole slots, as described, in combination withthe housing G, having projecting rivets g, slotted wheel-frame andbottom plate, a locking-pin, and lockingf forth.

In testimony that I claim the foregoing I have hereunto set my hand, atMilwaukee, in thecounty of Milwaukee and State of fisconsin, in thepresence-oftwo Witnesses.

SIGISMUND M, MICHELSON.

Vitiiesses: l

STANLEY S. S'roUT, H. G. UNDERWooD.

